Product Description

40W twists compact fluorescent lamp medium screw base

Product Details

• Amazon Sales Rank: #682 in Home Improvement
• Color: Daylight
• Brand: Feit Electric
• Model: ESL40TN/D

Features

• Bulb color enhances natural sunlight
• Uplifting and bright color
• Ideal for work areas
• Saves energy

From the Manufacturer
High-Wattage 40-Watt Compact fluorescent lamp

Customer Reviews

Bright, saves power, hopefully will last
The 40W fluorescents (150-200W equivalent) are hard to find in most brick and mortar stores (they like to sell the smaller 40W and the 100W equivalents) so I was double-happy when I saw this one at Amazon. First, because Amazon carries it and second because it's available under super-savers' shipping.

Talking about the item itself:

- you WILL experience some delay when you turn it on but it's hardly noticeable, like maybe 1/10 of a second
- once it's on, unlike the 'cheaper' fluorescents that need to warm up, it shines at or close to full brightness immediately
- it's a bulky, significantly wider and longer than the 150W incandescent equivalents and it may not fit all fixtures where a regular 150W bulb used to fit
- does not work well with a dimmer - it's either on or off [I tried it with one and it did come on at full brightness but something is telling me that you may shorten its life when used this way]
- the light is bright, so bright, I would not stare at it directly - I did once and I saw 'ghosts' for the next 15-30 minutes
- the color of light is closer to 'solar' than what our 'incandescents' deliver, less yellow, more blue
- unlike neon lights, there's no flicker
- it consumes less power when compared to an incandescent

The above were my subjective comments. Here are the specs, as the manufacturer lists them:

- Light output: 2800 lumens
- Energy used: 42W
- Life: 8000 hrs.
- Color temperature: 6500K
- Electric charge: 610mA


The major issue I have with the fluorescents is their lifespan. Maybe I am unlucky but, after replacing nearly all my light bulbs in the house - a few dozen - they seem to burn out more often. My first couple 40W I bought a few years ago (a different brand), in fact, died after about one year, I hope this is not the case again because we are paying top dollar for these environmentally nice devices.

So far, I see no reason not to award this bulb 5 stars but, if it dies on me before 2-3 years, I promise to come back and update my review. For the record, the maker promises a 7-year lifespan and $152 (???) savings per bulb.

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October, 2009 update:

On their 5th month, they (I bought a 2-pack) are as bright and shiny as on 'day one' and they've been on for many hours because I telecommute most of the time and my office is in the basement.

Hard to find product, great price
Finding a CFL greater than 100W-equivalent is pretty difficult. Finding one that is 200W-equivalent and 6500K is almost impossible. These lights are perfect for photography where you need true-color rendition. The price is right too.

Great Bulb, Physically Large, But Plenty Of Illumination
This is a large bulb, but it provides a lot of illumination for the wattage used. Much better than the lower wattage CFLs, many of which are rather weak. This one puts out the light, in a well dispersed pattern, as well. Good value for the money, recommended.